Movie
Description
Yume Nijino stars as the main protagonist. Her name, combining "Nijino" (rainbow field) and "Yume" (dream), directly connects her to rainbows and aspiration. She possesses fair skin, gradient orange eyes, and distinctive blonde hair featuring pink ombre ends, usually styled in curled pigtails secured by a signature pink ribbon on her left side. Her appearance evolves in later seasons, showcasing longer, wavier hair with more prominent pink ombre and specialized uniforms reflecting her status. She stands 154 cm tall and her zodiac sign is Pisces.

Her personality blends cheerfulness, curiosity, and emotional sensitivity, leading her to cry easily while also exhibiting strong determination and resilience. Occasional impulsiveness and mischievousness surface, yet she remains deeply supportive of others, consistently prioritizing their happiness. A core trait is her refusal to give up on goals or friendships, exemplified by organizing performances for departing friends and persistently pursuing her idol ambitions. Her interests include animals (especially koalas), sweets, daydreaming, volleyball, and confectionery-making, stemming from her background helping at her family's pastry shop.

Raised assisting in her parents' confectionery shop and playing volleyball, Yume enrolled at Four Star Academy. During her entrance audition, an uncontrollable rainbow aura enhanced her performance but caused her to collapse, leading to hospitalization where she met her idol, Hime Shiratori. Initially dreaming of joining the elite S4 unit to emulate Hime, she later realized the importance of authenticity over imitation, refining her unique style and ultimately earning her place in S4.

After achieving S4 membership, her goals expanded: she created the Rainbow Berry Parfait brand (transitioning from Berry Parfait) and developed the Eternal Rainbow Coord, a Premium Rare dress that granted her "Earth Wings". Subsequent ambitions included becoming the "world’s brightest idol" and pursuing the legendary Sun Dress, symbolizing ultimate radiance.

Key relationships define her journey: Laura Sakuraba, her first friend at Four Star Academy, evolves into a cherished rival who mutually pushes her to improve. Koharu Nanakura, her childhood friend and confidante, supports her emotionally and creatively, even after relocating to Italy. Hime Shiratori serves as her mentor and inspiration, guiding her through challenges like controlling her rainbow aura. Subaru Yūki (of rival unit M4) shares a dynamic involving teasing nicknames like "Boiled Octopus," evolving into a respected rivalry and occasional source of guidance. Other significant bonds include S4 colleagues Mahiru Kasumi, Ako Saotome (who views Yume as a "love rival" over Subaru), and Yuzu Nikaidō, as well as Venus Ark’s Elza Forte, whom she admires but resolves to surpass.

Notable trivia includes her status as the third main protagonist in the franchise, sharing similarities with predecessors like a food-related family business (confectionery vs. Ichigo Hoshimiya’s bento shop) and Pisces zodiac. She is the third character with ombre hair, fifth with dual-colored hair, and fourth with heterochromia. Unique distinctions include being the only character without a shared singing voice from prior series and the first non-S4 idol to perform in a Premium Rare dress.